SILICON ALUMINIUM SPUTTERING TARGETS. THIS IS A POWDER BLEND OF PURE SILICON WITH ALUMINIUM. THE BLEND IS TYPICALLY 92% SILICON AND 8% ALUMINIUM OR 90% SILICON AND 10% ALUMINIUM. THE POWDER IS MIXED TOGETHER AND THEN THERMALLY SPRAYED ONTO A STAINLESS STEEL BACKING TUBE. THE SILICON ALUMINIUM TARGETS ARE USED TO COAT SHEET GLASS TO CREATE A LAYER STACK OF LOW EMMISSIVITY GLASS. THIS MATERIAL IS USED AS A PROTECTION LAYER ON THE GLASS.

GENERAL INTERPRETATIVE RULES 1 & 6 TEXT TO CODES 3824 & 3824 90 97 99 HARMONISED SYSTEM EXPLANATORY NOTES TO HEADING 3824